mtarchive.blogspot.com
MTArchiveAn archive of online columns written by Ivars Peterson (1996-2007) and updated.
http://mtarchive.blogspot.com/
An archive of online columns written by Ivars Peterson (1996-2007) and updated.
http://mtarchive.blogspot.com/
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MTArchive | mtarchive.blogspot.com Reviews
https://mtarchive.blogspot.com
An archive of online columns written by Ivars Peterson (1996-2007) and updated.
mtarchive.blogspot.com
MTArchive: July 2013
http://mtarchive.blogspot.com/2013_07_01_archive.html
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Friday, July 19, 2013. Playing with integers can lead to all sorts of little surprises. A whole number that is equal to the sum of all its possible divisors—including 1 but not the number itself—is known as a perfect number. For example, the proper divisors of 6 are 1, 2, and 3, and 1 2 3 equals 6. Incidentally, if the sum works out to be less than the number itself, the number is said to be defective. 1707- 1783) proved the ...
MTArchive: September 2011
http://mtarchive.blogspot.com/2011_09_01_archive.html
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Sunday, September 25, 2011. A Catalog of Random Bits. Random numbers are a precious commodity, whether expressed as strings of decimal digits or simply 1s and 0s. Computer scientist and mathematician George Marsaglia. 1924-2011) spent most of his career producing and testing random numbers. To describe any algorithm that employs random numbers. A century ago, researchers who needed random numbers in their scientific work actu...
MTArchive: October 2013
http://mtarchive.blogspot.com/2013_10_01_archive.html
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Sunday, October 20, 2013. Watch him pull a rabbit out of his hat? Arthur T. Benjamin. Eschews the usual trappings of the magician's trade. Calling himself a mathemagician. He astonishes audiences with amazing feats of mental arithmetic. Behind the scenes, he reveals how you, too, can look like a genius without really trying. Photo by Richard Haverty. With comedian Stephen Colbert on The Colbert Report. For example, to multipl...
MTArchive: June 2011
http://mtarchive.blogspot.com/2011_06_01_archive.html
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Wednesday, June 29, 2011. The Complexity of TipOver and Other Puzzles. This scenario is the basis for an entertaining and challenging puzzle called TipOver. In 2006, Games. Magazine named it " puzzle of the year. TipOver started out as an online game invented by James W. Stephens of Atlanta. It's featured on his PuzzleBeast website. As the " Kung Fu Packing Crate Maze. Puzzle inventor M. Oskar van Deventer. Robert A. Hearn.
MTArchive: July 2011
http://mtarchive.blogspot.com/2011_07_01_archive.html
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Sunday, July 31, 2011. More than 5,000 mathematicians come annually to the Joint Mathematics Meetings. JMM), held in January. In recent years, amidst the usual lectures, poster sessions, job interviews, and much else, these gatherings have also featured an evening event for those particularly interested in mathematical crafting. Smith College) and Carolyn A. Yackel. In the realm of counted cross stitch. Northwest Missouri Sta...
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The Mathematical Tourist: Fountain Parabolas
http://mathtourist.blogspot.com/2011/05/fountain-parabolas.html
May 22, 2011. Shooting graceful arcs of water into the air, fountains can offer lessons in geometric spectacle. The fountain at the National Gallery of Art Sculpture Garden. In Washington, D.C., is a notable example. The circular fountain at the National Gallery of Art Sculpture Garden shoots parabolic streams of water from its circumference toward its center. Water jets shooting from standard nozzles quickly spread out and lose definition as parabolas. At Detroit Metropolitan Wayne County Airport. The w...
The Mathematical Tourist: A Mathematical Eye on Portland
http://mathtourist.blogspot.com/2014/07/a-mathematical-eye-on-portland.html
July 23, 2014. A Mathematical Eye on Portland. Will be held August 6-9, 2014, in Portland, Oregon, bringing together more than 1,500 mathematicians. Known for its riverfront scenery, culinary delights, and cool vibe, the city also has a lively art and architecture scene. And you can find lots of examples of embedded mathematics, from the parabolic arcs of the city's fountains to the geometric intensity of its bridges. In a city of many bridges, the Hawthorne Bridge. And " Fountain Parabolas. A particular...
The Mathematical Tourist: December 2012
http://mathtourist.blogspot.com/2012_12_01_archive.html
December 15, 2012. Umbilic Torus, Writ Large. Has a new landmark—a gracefully contoured, intricately patterned ring that rises 24 feet above its granite base. Installed. In October, this bronze sculpture is a visual testament to the beauty of mathematics. Created by noted sculptor and mathematician Helaman Ferguson. Helaman Ferguson stands with a completed portion of his. Umbilic Torus SC sculpture in his Baltimore warehouse studio. Titled Umbilic Torus SC. The basic underlying form is a torus. Imagine s...
The Mathematical Tourist: November 2012
http://mathtourist.blogspot.com/2012_11_01_archive.html
November 22, 2012. Crafting a Penrose Tiling. An array of wooden tiles assembled into an intriguing pattern flecked with stars forms a striking contrast to the regular arrangement of bricks making up the wall on which it hangs on the third floor of Avery Hall, home of the mathematics department at the University of Nebraska-Lincoln. The particular tiling pattern depicted in the wall piece is one of two Penrose rhomb arrangements that have the dihedral automorphism group. Photos by I. Peterson. Plaster Mo...
The Mathematical Tourist: January 2012
http://mathtourist.blogspot.com/2012_01_01_archive.html
January 9, 2012. Courtesy of Frank Farris. Published in Mathematics Magazine. Vol 84, No. 4 (October 2009), p. 254. We need more articles! Suggest titles and/or authors. Monday, January 09, 2012. Links to this post. January 8, 2012. This year's display of mathematical art. At the Joint Mathematics Meetings. In Boston featured an eye-popping array of three-dimensional structures. One of my favorites was a crinkled surface—an intricately pleated cone—crafted from a single sheet of blue paper. Welcome to an...
The Mathematical Tourist: July 2014
http://mathtourist.blogspot.com/2014_07_01_archive.html
July 23, 2014. A Mathematical Eye on Portland. Will be held August 6-9, 2014, in Portland, Oregon, bringing together more than 1,500 mathematicians. Known for its riverfront scenery, culinary delights, and cool vibe, the city also has a lively art and architecture scene. And you can find lots of examples of embedded mathematics, from the parabolic arcs of the city's fountains to the geometric intensity of its bridges. In a city of many bridges, the Hawthorne Bridge. And " Fountain Parabolas. A particular...
The Mathematical Tourist: June 2013
http://mathtourist.blogspot.com/2013_06_01_archive.html
June 25, 2013. Pentagons and Game Balls. The game of sepak takraw. A popular form of kick volleyball in Southeast Asia, uses a woven ball that, in its simplest form, has 12 pentagonal holes and shows a weaving pattern with 20 intersections. The twelve pentagons remind me of a regular dodecahedron. One of the Platonic solids. Traditionally made from rattan. Such a ball may be constructed from six long strips ( instructions. More complicated weavings produce triangular patterns on the ball's surface (below).
The Mathematical Tourist: Bending a Square Prism
http://mathtourist.blogspot.com/2010/07/bending-square-prism.html
July 10, 2010. Bending a Square Prism. 1929-2005) are based on simple geometric elements—often a. Wrought into an evocative form. 1971) is in front of the Esther Raushenbush Library, Sarah Lawrence College, Bronxville, N.Y. In a typical sculpture, a single rectangular volume twists and turns upon itself before lunging into space, suggesting a forceful release of tension or a mood of exhilaration. 1974) Hale Boggs Federal Building Plaza, New Orleans. 1969) Portland Art Museum, Oregon. Welcome to an occasi...
The Mathematical Tourist: August 2013
http://mathtourist.blogspot.com/2013_08_01_archive.html
August 19, 2013. The craft of counted cross-stitch. Lends itself to the creation of elegant patterns on fabric, and mathematician Mary D. Shepherd. Has taken advantage of this form of needlework to vividly illustrate a wide variety of symmetry patterns. Mary Shepherd with her cross-stitch symmetries sampler. Photo by I. Peterson. The fabric that Shepherd uses is a grid of squares, and the basic stitch appears as an X on the fabric. In other words, one cross-stitch covers one square of the fabric. Six of ...
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Mike Turner's Enterprise Architecture Blog. This is my personal blog to share thoughts, ideas and experiences in Enteprise Architecture. The opinions expressed here represent my own views and not those of my employer. Saturday, 14 February 2009. Guidance for Reading the TOGAF 9 PDF. So now on to the TOGAF 9 specification (page reference numbers are given for the PDF download version):. I know nothing about TOGAF and I want to see what the fuss is about. Part II, starting from page 49). Section (Part VI, ...
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MTArchive
An archive of online columns written by Ivars Peterson (1996-2007) and updated. Monday, February 20, 2017. Drawing and constructing polyhedra. Is a pastime that goes back to the Renaissance and perhaps even earlier times. Leonardo da Vinci. 1452–1519), for one, created illustrations of various polyhedra. For a 1509 book on the divine proportion by Luca Pacioli. But the realm of polyhedra encompasses all sorts of additional forms: spiky stellated polyhedra. Intricate, interlocked shapes, buckyballs. His p...
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manual de comunicação
Tuesday, October 31, 2006. 3- TIPOS DE CORRESPONDÊNCIAS. Entre as várias classificações das correspondências, podem-se destacar as que seguem. Denomina-se correspondência oficial o conjunto de papéis que estabelece a comunicação entre as instituições públicas. Os textos oficiais devem obedecer a certas regras de forma, tanto na expressão lingüística quanto na diagramação. Cada modalidade de texto tem seu jeito de ser formalizada, e é isso que lhe confere uma certa padronização. As abreviaturas consistem ...
Melissa Tardiff
Send me a message. June 2015 – present. Setting up scalable processes for digital operations. Best practices for working remotely with production teams. Expertise in online digital media. VP/Director of Digital Operations, Prodigious. Lead the digital production operations for a leading cross-media production agency. Own Digital Studio practice: process, workflow, rate cards, training, onboarding. Provide support to regional Prodigious offices/clients. Responsible for Prodigious US team in Costa Rica.
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Welcome to the Mountain Area Fair Website. Come celebrate our 51st Anniversary of Mountain Area Fair. Our fair will be from June 17 through June 23, 2018. The fair is located off of Route 40 in Farmington, PA. We are also known at Farmington Volunteer Fire Department. Address is: 119 Elliotsville Road. Farmington, PA 15437. Click for Google Map Directions. Also this year we will be paying out for some entries! Please look at the General Rules page for payouts. President.Thomas Tom Murray.
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